PLATE 8. 



Buds of Oenothera lamarckiana and four of its mutants, showing characteristic differences and 

 variability, ist row at top, Oenothera lamarckiana; 2nd row, Oenothera rubrinervis; 3rd 

 row, Oenothera lata ; ^th row, left, Oenothera jjigas, right, Oenothera nanella. 



HELIOTYPE CO., BOSTON. 



